A statement from the governing body issued on Friday said: "The FA can confirm that its investigation into Nicolas Anelka remains ongoing.

"We are working with an appointed expert regarding the salient issues related to the 'quenelle' gesture."

The FA added no decision on whether Anelka would face disciplinary action would be announced until January 20 at the earliest.

Anelka, 34, sparked a media storm last month when he celebrated the first of his two goals in West Brom's 3-3 Premier League draw at West Ham United by putting one arm across his chest and straightening the other.

The gesture, popularised by French comedian Dieudonne, has been described by critics in France as an anti-Semitic 'inverted Nazi salute', but Anelka has insisted that it was merely "a dedication" to the comic.

Under new anti-discrimination rules introduced last May, Anelka faces a minimum five-match ban if the FA decides he is guilty of discrimination.